> For the complete documentation index, see [llms.txt](https://doc.vietqr.vn/doc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.vietqr.vn/doc/api-vietqr-callback/api-vietqr-host2host/english-version.md).

# English version